class Calc:

    def addition(self, param1, param2):
        return param1 + param2

    def subtraction(self, param1, param2):
        return param1 - param2

    def division(self, param1, param2):
        if param2 == 0:
            return False
        return param1 / param2

    def multiplication(self, param1, param2):
        return param1 * param2


# # 加法测试
# a = 0
# b = 0
# c = 0
#
# calc = Calc()
# s = calc.addition(a, b)
# print(s)
#
# if s == c:
#     print('用例通过！')
# else:
#     print('“用例不通过！')
#
#
# # 减法测试
# a = 0
# b = 0
# c = 0
#
# calc = Calc()
# s = calc.subtraction(a, b)
# print(s)
#
# if s == c:
#     print('用例通过！')
# else:
#     print('“用例不通过！')
#
#
# # 乘法测试
# a = 0
# b = 0
# c = 0
#
# calc = Calc()
# s = calc.multiplication(a, b)
# print(s)
#
# if s == c:
#     print('用例通过！')
# else:
#     print('“用例不通过！')
#
#
# # 除法测试
# a = 0
# b = 0
# c = 0
#
calc = Calc()
s = calc.division(1, 0)
print(s)

# if abs(s - c) < 10**-6:
#     print('用例通过！')
# else:
#     print('用例不通过！')